As a matter of fact, following shall throw some light:
Sivanum guhanum ondru - Paamban swamigal Sivanil sari paathi enbadhu sakthi - sivashakthi Sivanil sari paathi vishnu - sankaranarayanar Veerabadhirar - believed to be formed from Shiva is also considered to be shiva amsam Dhakshinamurthy - believed to be shiva amsam
And the above list would grow and finally equate to Shiva == everything
Subramanian sivanoda oru simplified form enru engo paditha gnapagam.....
neenga solraa maadhiri sivanukku pratyakshamaaga theriyum mugangal aindhu (may be not in the same order) 1. eesavaasyam 2. Vaamadevam 3. aghoram 4. Thathupurusham 5. Sathyojatham
kannukku pulappadaadha aaraavadhu mugam .. melnokki iruppadhu.. is called Adhomukham....
since pillaiyar is the mudhal padi he is may be called as first son.. murugan second padi may be called as second son....they are representation of Nadham and Bindu ....
arunagiriyaar goes one step further and calls murugan
"naadha bindhu kalaadhi namo nama..."
also further he calls murugan as the one who can give sivagnanam...
Soundarya lahari il paarthaal ambaal and sivan are in a roopam called as "kaameshwarn / kaameshwari" roopam..( dont think Michael madhana kamarajan movie)